He was Orhan's eldest son and his favorite and, until his death due to a hunting accident, his heir presumptive.

[7][8] In 1355 he crossed the Dardanelles and conquered parts of Rumelia, where he created a nucleus of Ottoman settlements which were then exploited as a base for future conquests.

[7][8] He died in 1357, due to a fall from his horse while hunting with falcon between Bolayır and Seydikavağı.

[9] His father had him buried in Bolayır, even though Süleyman had already had a mausoleum built in Yenişehir, near Bursa.

[9] He is also remembered for his religious and charitable constructions in the territories he administered: he built mosques, madrasas, caravanserais and schools in Bursa, Göynük, Geyve, Akyazı, İzmit, İznik and Gelibolu.